Patents by Inventor Elizabeth K. Muse

Elizabeth K. Muse has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electrochemical process for the removal of residual nitric acid from aqueous hydroxylammonium nitrate
    Patent number: 5391268
    Abstract: The present invention relates to an electrochemical process for the removal of excess or residual nitric acid from aqueous hydroxylammonium nitrate (HAN) solutions. The process utilizes a multi-compartment electrochemical membrane cell in which the HAN solution flows through a central ion exchanging compartment bounded by anion membranes on either side. Electrochemically generated OH-ions formed at the cathode are used to displace and remove the nitric acid from the HAN solution. In use, the residual nitric acid content in the HAN is suitably reduced to a specified safe level before the HAN is concentrated to a 13.0 molar final composition.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: February 21, 1995
    Assignee: Olin Corporation
    Inventors: Jerry J. Kaczur, Kenneth E. Woodard, Jr., David W. Cawlfield, Elizabeth K. Muse